glided in from the north east... we thought it was a piece of plastic (approx 4 ft square)...no wind at the time....shape of a sting ray fish... white in colour...it passed in front of us in our apartment went down to the water and swooped down over the water for approx 100 feet about 10 seconds then went up towards the northwest and dissapeared into the clouds about 2/3 miles away....my camera batteries were dead??....we both saw it myself naked eye and my girlfriend through the binoculars.....called the west vancouver police....thats it ... first time we have seen anything like it ... my girlfriend said as it turned upward it was grey/black on one side ...again the wind was zero......???...best contact is ((e-address deleted))...this email does not allways work…